Go on top of the Sphinx and there will be a sign click on the pomegranates and go to the Hades realm put the pomegranates on the stool and that's when it will take you to the river of STYX
You have to get Hercules to open it.
hes a god
give him ten darchmas
you need a pomegranate from above the sphinx
There is no key. After Zeus has the 5 sacred items, Hercules will help you go to see Poseidon and Hades, and then he will smash open the padlock on the gate.
When you have returned the 5 sacred items, Zeus steals them. Hercules will help you reach the throne rooms of Poseidon and Hades, and can open the lock on the Mount Olympus gate.
The gate to Mount Olympus is only opened late in the game, after Zeus has taken the five sacred items and Hercules has helped you obtain the Hades Crown and Poseidon's Trident. At that point, Hercules smashes open the padlock.
After you have the Hades Crown and the Trident from Poseidon, use the mirror to travel to the gate of Olympus (lightning bolt symbol at top). Hercules will smash open the lock and you can enter Olympus.
After Zeus takes the 5 sacred items, you can get Hercules to help you reach the throne rooms of Hades and Poseidon. Once you have the crown and the trident, you can go to battle Zeus on Mount Olympus. Transport Hercules to the gate and he will smash open the padlock. (*before going to Olympus, you will need the drachma coin from cleaning Hades' temple)
You don't. Once Zeus takes the 5 sacred objects, Hercules will help you reach the throne rooms of Hades and Poseidon, and will smash open the gate to Olympus. But after that you are on your own. (You need the one drachma you can earn by removing graffiti from the Temple of Hades.)
Place it on the offering stand in Hades throne room.
You don't get in until you have collected all of the five sacred items. After that Hercules is convinced to help you and he smashes the gate open.